Fuel Pressure Regulator 1 Control Circuit High
The P0092 code means the vehicle's onboard diagnostic system has detected: Fuel Pressure Regulator 1 Control Circuit High. This is a critical severity code.
- Keep driving?
- No -- stop driving
- DIY difficulty
- hard
- Estimated cost
- $150 - $600 (parts and labor)
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Common Symptoms
- Check Engine Light illuminated
- Engine cranks but may not start
- Very rough running if engine starts
- Fuel pressure reads zero or very low on scan tool
Probable Causes (Ranked by Likelihood)
- Open circuit in fuel pressure regulator wiring Very High
- Burned-out regulator solenoid coil High
- Disconnected connector at fuel pressure regulator Moderate
- PCM driver circuit open Low
Step-by-Step Diagnostic Procedure
-
Measure fuel pressure regulator solenoid resistance. Infinite ohms confirms open coil.
-
Check connector is fully seated and pins are not backed out.
-
Test wiring continuity from PCM to the regulator solenoid connector.
-
If wiring is good and solenoid is open, replace the fuel pressure regulator.
Frequently Asked Questions
Can a disconnected wire cause P0092?
Yes, a disconnected or broken wire between the PCM and the fuel pressure regulator solenoid will cause a circuit high (open) condition.
Will the engine run with P0092?
It depends on the system. Some engines will not start without fuel pressure control. Others may run with a default fuel pressure but with poor performance.
How urgent is P0092?
Very urgent. Without fuel pressure regulation, the engine may not run or may be damaged by incorrect fuel pressure. Repair before driving.
Sources
This page is built from documented references. Verify against your own service info before repair work.
P0092 on Diesel, EV & Equipment
The same code ID appears across other engines and platforms. The diagnostic flow varies by manufacturer — these are the platform-specific breakdowns:
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